SO-1858 Gardner School Chiller Replacement Addendum 1.pdf

PDF 4 MB Posted Jun 1, 2026

Attached to: SO-1858 Gardner School Chiller Replacement State and local contract opportunity
Solicitation number: RFP LSD 260000002049 5
Issued by: Grand Traverse County, Lansing City, Lansing City, Lansing City, Michigan

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Written by GovTribe AI · Jun 2, 2026

This addendum document issued by the Lansing School District pertains to modifications and clarifications for the Gardner Elementary School Chiller Replacement project. The project, located at 333 Dahlia Drive in Lansing, Michigan, involves the replacement of existing chiller equipment with associated electrical work coordinated by Matrix Consulting Engineers. Addendum No. 1, dated May 19, 2026, modifies the original contract documents and takes precedence over them. The addendum addresses electrical system changes across multiple sheets, including re-issued drawings for electrical panels E-300, E-500, E-600, and E-601. Key modifications include the addition of existing panels to sheets E-300 and E-500, removal of keynotes, addition of circuit tags to equipment (EF-1, EF-2, P-HC-1), and revision of the P-4 combination starter location. Sheets E-600 and E-601 have been re-issued to include updated panel schedules. All incidental items required to provide the modifications are included in the contractor's scope of work.

The addendum establishes base bid and alternate bid options for demolition and electrical work. Base bid work includes disconnecting and removing existing equipment with associated conduit remaining for connection to new equipment and wire removal back to source. Alternate bids provide options for capping conduit above finished floor or terminating conduit to pull boxes. The electrical scope includes reconnecting an existing capacitor to the new chiller, with contractors required to provide and install new breakers matching existing types. Field verification of existing circuits is required for potential reconnection purposes. The addendum specifies that exhaust fans shall run continuously and be controlled by a refrigerant monitor with routing through a RIB relay controlled by the Building Automation System. Contractors must provide all wire and conduit necessary for a complete installation.

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File	Type	Posted
Addendum 03 - Matrix (003).pdf	PDF	Jun 1, 2026
Addendum 02 - Matrix.pdf	PDF	Jun 1, 2026

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544 Cherbourg Drive, LANSING, MI 48917

PHONE: (517) 487-2511

FAX: (517) 487-2544

ADDENDUM NO. 1

LSD Gardner Elementary Chiller Replacement

Date:05/19/2026 Job Number: 260150.00

OWNER: ENGINEER:

Lansing School District Matrix Consulting Engineers 333 Dahlia Dr 544 Cherbourg Drive Lansing, MI 48911 Lansing, MI 48917

This Addendum is issued for the purpose of modifying and/or clarifying the original Contract Documents and shall take precedence over them.

All work included herein shall be in accordance with the original drawings and specifications except as specifically noted herein. All incidental items required to provide the following modifications shall be included even though not specifically described.

This addendum is being sent to all bidders receiving plans and specifications. Receipt of this Addendum shall be noted on the Proposal Form in the appropriate location.

Electrical

1. Sheet E-300 (Sheet Re-issued):

a. Added existing panel.

2. Sheet E-500 (Sheet Re-issued):

a. Added existing panel.

b. Removed keynote.

c. Added circuit tags to equipment (EF-1, EF-2, P-HC-1).

d. Revised location of P-4 combination starter.

3. Sheet E-600 (Sheet Re-issued):

a. Added existing panel schedule.

4. Sheet E-601 (Sheet Re-issued):

a. Added revised panel schedule.

END OF ADDENDUM

X-CH-2

X-P X-P

GENERATOR

X-B X-B

X-DWH

X-COMPRESSOR

X-P-5

X-DDC CONTROL PANELS

X-P-1 VFD X-P-2 VFD

X-P-4

X-CH-1

X-P-3

X-P-6

X-P-1

X-P-2

1 1

1 2

1 1

2 2 1 1 1

J CONTROL

PANEL

35KVAR

9KVAR4KVAR

"EMPD-01"

PNL "PP-02"

PNL "PP-4"

FACP

PNL "EXCP-01"

PNL "XFAP-01"

65KVAR

J CONTROL

PANEL

1 2

PNL "EBCP-01"

EXISTING EQUIPMENT TO REMAIN.

BASE BID:

DISCONNECT AND REMOVE EXISTING EQUIPMENT. ASSOCIATED CONDUIT

TO REMAIN FOR CONNECTION TO NEW EQUIPMENT. REMOVE ASSOCIATED

WIRE BACK TO SOURCE.

ADD ALTERNATE:

DISCONNECT AND REMOVE EXISTING EQUIPMENT. ASSOCIATED CONDUIT

TO BE CAPPED ABOVE FINISHED FLOOR. REMOVE ASSOCIATED WIRE BACK

TO SOURCE.

BASE BID:

EXISTING EQUIPMENT TO REMAIN. ASSOCIATED CONDUIT TO REMAIN FOR

CONNECTION TO NEW EQUIPMENT. REMOVE ASSOCIATED WIRE BACK TO

SOURCE.

ADD ALTERNATE:

EXISTING EQUIPMENT TO REMAIN. ASSOCIATED CONDUIT TO BE

TERMINATED TO PULL BOX. REMOVE ASSOCIATED WIRE BACK TO SOURCE.

DISCONNECT AND REMOVE EXISTING CAPACITOR FOR REMOVAL OF

CHILLER. RE-CONNECT CAPACITOR TO NEW CHILLER.

DEMOLITION NOTES

M A

T R

I X

N MECHANICAL ROOM PLAN - DEMOLITION

SCALE: 1/4" = 1'-0"

0 1 5 10

AutoCAD SHX Text

PROJECT NUMBER

AutoCAD SHX Text

SHEET NUMBER

AutoCAD SHX Text

SHEET DESCRIPTION

AutoCAD SHX Text

DATE

AutoCAD SHX Text

PROJECT

AutoCAD SHX Text

REVISIONS

AutoCAD SHX Text

APPROVED

AutoCAD SHX Text

DRAWN

AutoCAD SHX Text

CONSULTING ENGINEERS, INC

AutoCAD SHX Text

PHONE: (517) 487-2511

AutoCAD SHX Text Lansing, MI 48917

AutoCAD SHX Text 544 Cherbourg Drive

AutoCAD SHX Text administrator@matrixceinc.com

AutoCAD SHX Text 260150.00

AutoCAD SHX Text 05/18/2026

AutoCAD SHX Text

GARDNER INTERNATIONAL MAGNET SCHOOL

AutoCAD SHX Text

CHILLER REPLACEMENT

AutoCAD SHX Text

333 DAHLIA DR, LANSING, MI

AutoCAD SHX Text

ADDENDUM #1

AutoCAD SHX Text 05/19/2026

AutoCAD SHX Text

100% BID SET

AutoCAD SHX Text 05/18/2026

AutoCAD SHX Text Matrix Project No. 260150.00

AutoCAD SHX Text E-300

AutoCAD SHX Text

MECHANICAL

AutoCAD SHX Text

ROOM PLAN

AutoCAD SHX Text

DEMOLITION

AutoCAD SHX Text

BTT

AutoCAD SHX Text

JFS

X-CH-2

X-P X-P

X-B X-B

X-DWH

X-COMPRESSOR

X-P-5

X-DDC CONTROL PANELS

P-2 VFD

P-1

480V-3Ø, 50HP

GENERATOR

4KVAR

EXIST.

"EMPD-01"

EXIST.

PNL "PP-02"

EXIST.

PNL "PP-4"

FACP

EXIST.

PNL "EXCP-01"

EXIST.

PNL "XFAP-01"

65KVAR

J CONTROL

PANEL

P-2

480V-3Ø, 50HPP-6

480V-3Ø, 10HP

P-3

480V-3Ø, 10HP

CH-1

480V-3Ø, 272.9A

J CONTROL

PANEL

35KVAR

EX EX

VFD

P-1 VFD

(3) #10

(1) #10 GND

3/4" CND

PP-02-1PP-02-3 (3) #4

(1) #8 GND

1-1/4" CND(3) #4

(1) #8 GND

1-1/4" CND

(3) #10

(1) #10 GND

3/4" CND PP-02-5

PP-02-7

PP-02-9

EMPD-01-10

(4) #350KCMIL

(1) #4 GND

3-1/2" CND

P-6 COMBINATION STARTER

P-4 COMBINATION STARTER

P-3 COMBINATION STARTER

EF-1

120V-1Ø, 6.6 FLA

P-HC-1

120V-1Ø, 1/6HP

EF-2

120V-1Ø, 16.0 FLA

EX EX

EBCP-01-3

EBCP-01-18

EBCP-01-17

PNL "EBCP-01"

1 (3) #10

(1) #10 GND

3/4" CND

P-4

480V-3Ø, 5HP

ELECTRICAL KEY NOTES

BASE BID:

REUSE EXISTING CONDUIT FOR CONNECTION TO NEW EQUIPMENT. PROVIDE

AND INSTALL NEW WIRE.

ADD ALTERNATE:

PROVIDE AND INSTALL NEW CONDUIT AND WIRE FOR CONNECTION TO NEW

EQUIPMENT.

BASE BID:

REUSE EXISTING CONDUIT TO PULL BOX FOR CONNECTION TO NEW

EQUIPMENT. PROVIDE AND INSTALL NEW CONDUIT FROM PULL BOX TO

CHILLER. PROVIDE AND INSTALL NEW WIRE IN ENTIRETY.

ADD ALTERNATE:

PROVIDE AND INSTALL NEW CONDUIT AND WIRE FOR CONNECTION TO NEW

EQUIPMENT.

RE-CONNECT CAPACITOR TO NEW CHILLER.

EXISTING CIRCUIT IS UNKNOWN, NEW CIRCUIT NUMBER IS SHOWN FOR

LOAD PURPOSES. CONTRACTOR SHALL FIELD VERIFY EXISTING CIRCUIT,

FOR POTENTIAL RE-CONNECTION.

EXHAUST FAN TO RUN CONTINUOUSLY.

EXHAUST FAN SHALL BE CONTROLLED BY REFRIGERANT MONITOR. ROUTE

CIRCUIT THROUGH RIB RELAY CONTROLLED BY BAS SYSTEM. PROVIDE ALL

WIRE AND CONDUIT FOR A COMPLETE INSTALLATION.

M A

T R

I X

N MECHANICAL ROOM PLAN - POWER

SCALE: 1/4" = 1'-0"

0 1 5 10

AutoCAD SHX Text M

AutoCAD SHX Text S

AutoCAD SHX Text M

AutoCAD SHX Text S

AutoCAD SHX Text M

AutoCAD SHX Text S

AutoCAD SHX Text

PROJECT NUMBER

AutoCAD SHX Text

SHEET NUMBER

AutoCAD SHX Text

SHEET DESCRIPTION

AutoCAD SHX Text

DATE

AutoCAD SHX Text

PROJECT

AutoCAD SHX Text

REVISIONS

AutoCAD SHX Text

APPROVED

AutoCAD SHX Text

DRAWN

AutoCAD SHX Text

CONSULTING ENGINEERS, INC

AutoCAD SHX Text

PHONE: (517) 487-2511

AutoCAD SHX Text Lansing, MI 48917

AutoCAD SHX Text 544 Cherbourg Drive

AutoCAD SHX Text administrator@matrixceinc.com

AutoCAD SHX Text 260150.00

AutoCAD SHX Text 05/18/2026

AutoCAD SHX Text

GARDNER INTERNATIONAL MAGNET SCHOOL

AutoCAD SHX Text

CHILLER REPLACEMENT

AutoCAD SHX Text

333 DAHLIA DR, LANSING, MI

AutoCAD SHX Text

ADDENDUM #1

AutoCAD SHX Text 05/19/2026

AutoCAD SHX Text

100% BID SET

AutoCAD SHX Text 05/18/2026

AutoCAD SHX Text Matrix Project No. 260150.00

AutoCAD SHX Text E-500

AutoCAD SHX Text

MECHANICAL

AutoCAD SHX Text

ROOM PLAN

AutoCAD SHX Text

POWER

AutoCAD SHX Text

BTT

GROUND BUS

PARTIAL RISER DIAGRAM - EXISTING

SCALE: N.T.S.

EXISTING "EMPD-01"

277/480V, 3Ø, 4W 3000A

3000A-3P

MAINUTILITY CO.

1000KVA M

UTILITY CO.

FROM UTILITY

-3 P

PANEL

EXISTING

"PP-5"

277/480V 3Ø, 4W

300A, MLO

-3 P

PANEL

EXISTING

"PP-2"

277/480V 3Ø, 4W

200A, MLO

-3 P

PANEL

EXISTING

"PP-1"

277/480V 3Ø, 4W

200A, MLO

-3 P

PANEL

EXISTING

"PP-4"

277/480V 3Ø, 3W

400A, MLO

-3 P

PANEL

EXISTING

"PP-3"

277/480V 3Ø, 4W

600A, MLO

-3 P

GROUND BUS

EXISTING "PP-02"

277/480V, 3Ø, 3W 400A

-3 P

A-

SPARE

A-

SPARE

A-

SPARE

-3 P

A-

SPARE

A-

SPARE

A-

SPARE

A-

SPARE

GENERATOR

TRANSFER SW.

30A/3P

3PH 4W

FUSED

KVA

PANEL

EXISTING

"EXCP-01"

120/208V 3Ø, 4W

100A, MLO

AUTOMATIC

30A

NORMAL

SOURCE

P-2

WEST COOLING

TOWER PUMP P-1 P-5 P-6

WEST

CHILLER-2

EAST

CHILLER-16

DISCONNECT AND REMOVE EXISTING EQUIPMENT. MODIFY ASSOCIATED

CONDUIT AND WIRE FOR NEW EQUIPMENT.

REMOVE EXISTING BREAKER, AND TURN OVER TO OWNER.

DEMOLITION NOTES

1 1 1

2 2 2

EXEX

M A

T R

I X

AutoCAD SHX Text

PROJECT NUMBER

AutoCAD SHX Text

SHEET NUMBER

AutoCAD SHX Text

SHEET DESCRIPTION

AutoCAD SHX Text

DATE

AutoCAD SHX Text

PROJECT

AutoCAD SHX Text

REVISIONS

AutoCAD SHX Text

APPROVED

AutoCAD SHX Text

DRAWN

AutoCAD SHX Text

CONSULTING ENGINEERS, INC

AutoCAD SHX Text

PHONE: (517) 487-2511

AutoCAD SHX Text Lansing, MI 48917

AutoCAD SHX Text 544 Cherbourg Drive

AutoCAD SHX Text administrator@matrixceinc.com

AutoCAD SHX Text 260150.00

AutoCAD SHX Text 05/18/2026

AutoCAD SHX Text

GARDNER INTERNATIONAL MAGNET SCHOOL

AutoCAD SHX Text

CHILLER REPLACEMENT

AutoCAD SHX Text

333 DAHLIA DR, LANSING, MI

AutoCAD SHX Text

ADDENDUM #1

AutoCAD SHX Text 05/19/2026

AutoCAD SHX Text

100% BID SET

AutoCAD SHX Text 05/18/2026

AutoCAD SHX Text Matrix Project No. 260150.00

AutoCAD SHX Text E-600

AutoCAD SHX Text

EXISTING RISER

AutoCAD SHX Text

DIAGRAM AND

AutoCAD SHX Text

PANEL

AutoCAD SHX Text

SCHEDULES

AutoCAD SHX Text

BTT

GROUND BUS

PARTIAL RISER DIAGRAM - REVISED

SCALE: N.T.S.

EXISTING "EMPD-01"

277/480V, 3Ø, 4W 3000A

3000A-3P

MAINUTILITY CO.

1000KVA M

UTILITY CO.

FROM UTILITY

-3 P

PANEL

EXISTING

"PP-5"

277/480V 3Ø, 4W

300A, MLO

-3 P

PANEL

EXISTING

"PP-2"

277/480V 3Ø, 4W

200A, MLO

-3 P

PANEL

EXISTING

"PP-1"

277/480V 3Ø, 4W

200A, MLO

-3 P

PANEL

EXISTING

"PP-4"

277/480V 3Ø, 3W

400A, MLO

-3 P

PANEL

EXISTING

"PP-3"

277/480V 3Ø, 4W

600A, MLO

-3 P

GROUND BUS

EXISTING "PP-02"

277/480V, 3Ø, 3W 400A

-3 P

A-

SPARE

-3 P

A-

SPARE

A-

SPARE

A-

SPARE

A-

SPARE

GENERATOR

TRANSFER SW.

30A/3P

3PH 4W

FUSED

KVA

PANEL

EXISTING

"EXCP-01"

120/208V 3Ø, 4W

100A, MLO

AUTOMATIC

30A

NORMAL

SOURCE

P-2

WEST COOLING

TOWER PUMP

P-1

P-5

P-6

WEST

CHILLER-2

EAST

CHILLER-16

VFD VFD

ELECTRICAL KEY NOTES

CONTRACTOR SHALL PROVIDE AND INSTALL NEW BREAKER, TO MATCH

EXISTING TYPE.

1 1 1

P-4 P-3

EXEX

M A

T R

I X

AutoCAD SHX Text

PROJECT NUMBER

AutoCAD SHX Text

SHEET NUMBER

AutoCAD SHX Text

SHEET DESCRIPTION

AutoCAD SHX Text

DATE

AutoCAD SHX Text

PROJECT

AutoCAD SHX Text

REVISIONS

AutoCAD SHX Text

APPROVED

AutoCAD SHX Text

DRAWN

AutoCAD SHX Text

CONSULTING ENGINEERS, INC

AutoCAD SHX Text

PHONE: (517) 487-2511

AutoCAD SHX Text Lansing, MI 48917

AutoCAD SHX Text 544 Cherbourg Drive

AutoCAD SHX Text administrator@matrixceinc.com

AutoCAD SHX Text 260150.00

AutoCAD SHX Text 05/18/2026

AutoCAD SHX Text

GARDNER INTERNATIONAL MAGNET SCHOOL

AutoCAD SHX Text

CHILLER REPLACEMENT

AutoCAD SHX Text

333 DAHLIA DR, LANSING, MI

AutoCAD SHX Text

ADDENDUM #1

AutoCAD SHX Text 05/19/2026

AutoCAD SHX Text

100% BID SET

AutoCAD SHX Text 05/18/2026

AutoCAD SHX Text Matrix Project No. 260150.00

AutoCAD SHX Text E-601

AutoCAD SHX Text

REVISED RISER

AutoCAD SHX Text

DIAGRAM AND

AutoCAD SHX Text

PANEL

AutoCAD SHX Text

SCHEDULES

AutoCAD SHX Text

BTT

260150.00 - LSD Gardner Elementary Chiller Replacement - Addendum #1 - Write-Up.pdf

260150.00 - LSD Gardner Elementary Chiller Replacement - Addendum #1 - Electrical.pdf

Sheets and Views

E300-26015000-24x36

E500-26015000-24x36

E600-26015000-24x36

E601-26015000-24x36

File details come from the government source that posted it. Updated Jun 2, 2026.